I save for web at 100%.
I open back up. I save again at 100%. It is bigger than the last time.
It keeps doing this over and over and over it could be infinite filesize but still only exact same quality image.

What I need to do is make one sigle aspect of the image 100% resolution (my logo) but make the rest and NOT my logo a smaller filesize. What SHOULD work, is to save WITHOUT the logo, and decrease, say 70%. Then open back up the SMALLER image, add the logo and move back to 100% quality and should be SMALLER THAN THE FIRST IMAGE.

EXAMPLE:

1000KB image
(1010KB with logo)

save without logo at 70%
Open the now 700KB image in photoshop.

Add 10KB logo, save at 100%

IMAGE IS NOW 1310KB!!

BUT THE FIRST TIME IT WAS ONLY 1010 KB WITH LOGO AT 100% QUALITY!!

What it SHOULD be is:

710KB

Do you get it? THIS MAKES NO SENSE! I HAVE WASTED 5 HOURS ON THIS SH*T!!

WHAT THE HELL??

feel free to edit this question to remove my emotional frustration. Right now I can't think clearly I am so mad right now.